Abb Technology Ag

Hitachi Energy Ltd

Hitachi Energy Switzerland Ag

Benny Wedin

Francesco Agostini

Jakub Korbel

Sami Kotilainen

Richard Thomas

Brian Christopher

Matt D Cuppett

Jonas Persson

Anders Jansson

Tomas Roininen

Staffan Jacobsson

Anders Strömbeck

Kent Kirjonen

Lars Jeppsson

Leif Persson

A conductor arrangement for a circuit breaker interrupter, the conductor arrangement including: a tubular body conductor including a first metal material, and an at least partly tubular contact conductor including a second metal material; wherein a tubular end portion of the tubular body conductor is mechanically and electrically joined with a tubular end portion of the tubular contact conductor in an circumferential overlap region formed by longitudinally press-fitting one of the tubular body conductor and the tubular contact conductor into the other one of the tubular body conductor and the tubular contact conductor, wherein the outer one of the tubular end portions of the tubular body conductor and the at least partly tubular contact conductor at the overlap region includes copper and the inner one includes aluminum.

Hybrid current path for circuit breakers

Provided is a spring drive cam for a spring drive of a circuit breaker including a disc-like shape configured for rotating around a rotation axis in the spring drive, whereby the disc-like shape comprises a radius (R) that changes depending on an angle (&#x3b1;) of the radius (R) relative to a base angle (&#x3b1;), and whereby a rate (dR/d&#x3b1;) defined by a change of the radius (R) per change of the angle (&#x3b1;) is &#x2264;0.3 mm/&#xb0;.

Spring drive cam for a spring drive of a circuit breaker

A support bracket for supporting insulating rods inside an insulator tube of a hollow core insulator. The support bracket includes a cylindrical ring with an outer surface for abutting against the inner surface of an insulator tube, an inner surface for supporting an insulating rod and two opposing end sides, denominated by first and second end sides. The support bracket includes an expansion assembly configured to be actuated so as to expand the cylindrical ring in at least one radial direction when the support bracket has been inserted in an insulator tube of a live tank circuit breaker.

Support bracket

Growing community of inventors

Grängesberg, Sweden

Benny Wedin